[openssl/openssl] c299be: adding provider_unload functions for cmp_ tests

[Danny Carpenter]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: c299be277f24f046b30963cae190fe342efa79da
      https://github.com/openssl/openssl/commit/c299be277f24f046b30963cae190fe342efa79da
  Author: Danny Carpenter <dcarp at microsoft.com>
  Date:   2023-04-16 (Sun, 16 Apr 2023)

  Changed paths:
    M test/cmp_client_test.c
    M test/cmp_msg_test.c
    M test/cmp_protect_test.c
    M test/cmp_vfy_test.c

  Log Message:
  -----------
  adding provider_unload functions for cmp_ tests

CLA: trivial

Reviewed-by: Todd Short <todd.short at me.com>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20731)

(cherry picked from commit 8835940db58229fc467cdea1eebf3f064352a086)